Supplementary to Audible Alarms: VADs are particularly efficient in substantial-sounds spots or exactly where hearing safety is worn, supplementing classic audible alarms. A VAD or Visual alarm gadget is a variety of unexpected emergency inform system that gives a visual cue to people during an crisis. Much better documentation and https://www.firesense.co.uk/type/addressable-fire-system/addressable-sounders-vids-vads/